[crashz]

I know people have done this, but look at it from an engineering standpoint:

A crew cab truck will be heavier than the normal 1/2 ton empty. Lets say ~5500 lbs curb weight when done. Add the addtional weight of up to 3 more passengers. 450 lbs + 450 lbs. Now add the weight of a car hauler, which if enclosed is at least ~3500 lbs. Add the car of 2800 lbs. Add fuel and gear ~500 lbs.

Total GCW = 13200 lbs
Total weight in truck = 7080

The problem is that the 1/2 ton gear was never built heavy enough for that loaded GVW. Typical it was around GVWR 6000 lbs total. GCWR is about at the max or a bit more. And this applies to modern day 1/2 ton crew cabs. Look at the GVWR on those. Loaded with pasengers and gas, a big cooler full of beer will put them over weight.

The real big problem here is that you will not really know what you can do withthe truck until it is completley finished and you can weigh each axle. I'd hate to see you build a $40K show truck that can't haul a lunchbox.

The other thought is the legal side. If you get into an accident with your truck, the lawyers can pick you apart for having non-DOT approved modifications done to your truck. I know this is a weak arguement, and nearly all of us would be fodder for it, but be aware that it could happen.